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Magnetical Observations.

82

Latitude 51° 32′ 40′′ North. Longitude West in Time 6.

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ARTICLE XIII.

ANALYSES OF BOOKS.

Tableau Methodique des Espèces Minerales, Seconde Partie; contenant la Distribution methodique des Espèces Minerales, extraite du Tableau Cristallographique publié par M. Haïy en 1809, leur Synonymies Française, Allemande, Italienne, Espagnole, et Anglaise, avec l'Indication de leur Gisment; auxquelles on a joint la Description abregée de la Collection de Minereaux du Museum d'Histoire Naturelle et celle des Espèces et des Varietés observées depuis 1806, jusq'en 1812, par I. A. H. Lucas, adjoint a son Père, Garde des Galeries du Museum d'Histoire Naturelle et Agent de l'Institut Imperial de France, Membre de plusieurs Societés Savantes. Paris, 1813.

This book is chiefly interesting because it shows us the present state of mineralogy in the French capital, and makes us acquainted with the additional facts ascertained by Hay (it would appear the only mineralogist in Paris) since the publication of his Tableau Comparatif in 1806. As the French mineralogists confine themselves chiefly to crystallized minerals, and are not acquainted with the method of describing minerals by their external characters, it is hardly possible to make their labours intelligible, except by figures. And as Lucas gives no figures, the utility of his work is in a great measure confined to those persons who are employed in studying mineralogy under Haüy. The localities of the different minerals which he has added are likewise of considerable value; and the notes copied from various new publications, some of which are unknown in Great Britain, give the work an additional value to the English reader. Instead of a regular analysis of this book, which would be of no use, I shall endeavour to collect from it the improvements which Hauy has introduced into his system since the original publication of his Mineralogie in 1801.

I. Hauy, as is known, I presume, to most of my readers, has invented a new name for almost every mineral species. These innovations originating, it is difficult to conceive, from what cause, have been highly approved of by the French in general. And M. Lucas, to enable foreigners to participate in the blessing of these new names, has been at the trouble to get the Hauyan nomenclature translated into German, Italian, Spanish, English, and Latin. The English translator, he tells us, is Dr. Russel, we presume an American. Unluckily, the translation is so little accommodated to our language, that it could not be used without exciting ludicrous ideas. The adjective being always placed after the substantive, a position which our lan

guage does not admit. Thus we have lime carbonated, lime phosphated, lime fluated, lime sulphated, &c. If the other translations are not more fortunate than this, neither the Germans, Spaniards, nor Italians, will derive much advantage from the benevolent exertions of M. Lucas.

The nomenclaturál zeal of M. Hauy is far from being cooled. In his mineralogy he allowed about ten of the old names of stony minerals to remain; among others, felspar, which had been employed from time immemorial, was permitted to figure away among the new words. This word has been since discarded, and the word orthose invented and substituted in its place.

II. The following are the new species admitted by Häuy into his system since the publication of his Mineralogie:

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1. Sulphuric acid. This acid was first observed in a lake in Italy in 1776. It has been since found in South America by Humboldt, and in a lake in Java by Leschenault de la Tour.

2. Boracic acid. Found in different lakes in the country of Sienna, in Italy, in 1776. It exists also in Thibet ; at least this opinion is entertained. The lakes of that country yield the borax of commerce.

3. Carbonic, sulphurous, and muriatic acids.

4. Ferruginous carbonate of lime. Found in Spain, and at Saltzburg. Romé de Lisle confounded the crystals of this variety of calcareous spar with those of fluor spar.

5. Red manganesian carbonate of lime. It has a red colour, and the crystalline form of carbonate of lime. It is a mixture of carbonate of lime, carbonate of manganese, and quartz.

6. Pearly carbonate of lime. This is the schieferspar of Werner, and the argentine of Kirwan.

7. Arragonite. Hauy threw this species of carbonate of lime into his appendix, on account of its crystalline form. He has since introduced it into his system as a distinct species.

8. Silicious phosphate of lime. This variety was described by Brogniart in his Mineralogy, and seems to be a mixture of phosphate of lime and quartz.

9. Ferruginous sulphate of magnesia. This is the haarsaltz of Werner. It occurs in abundance in the old coal-pits near Glasgow, from which alum is made.

10. Silicious carbonate of magnesia. This is the native magnesia of Werner discovered by Dr. Mitchell.

11. Silicious borate of lime. This is the datholite discovered at Arendal, in Norway, by Esmark, in 1806.

12. Sulphate of soda. Found in many mineral waters. It occurs, likewise, in Germany, crystallized, and in powder.

13. Sulphate of ammonia. Found on Mount Vesuvius and Mount Etna.

14. Glauberite. Found in Spain. It is a mixture or combination of sulphate of lime and sulphate of soda.

15. Corundum. Under this name Hauy at present comprehends his old species telesia, corundum, and emery; which Count Bournon demonstrated to belong to one species.

16. Tenaceous felspar Under this name is described the mineral called jade by Saussure, and saussurite by Karsten. 17. Apophyllite. This is the ichthyophthalmite of d'Andrada.

18. Triphane. This is the spodumene of d'Andrada. Both these species were found in Sweden, and have been for these eight years well known to mineralogists.

19. Yenite. This is a very rare mineral hitherto fourd only in the Isle of Elba, and discovered by Lelievre in 1801. As it contains more than half its weight of iron, one should have expected that Haüy would have classed it rather with the iron ores than with the stony minerals.

20. Hyperstene. This is the mineral formerly known by the name of Labradore hornblende, which Hauy has lately constituted a species apart.

21. Paranthine. This is the scapolite of d'Andrada, well known to mineralogists for these eight years.

22. Lomonite. This mineral, discovered by Gillet Laumont, has been for several years constituted a peculiar species by Werner.

23. Cubo-octahedral analcime. This is the mineral called sarcolite by Dr. Thompson, of Naples. Hauy considers it as a variety of his analcime.

24. Pinite.

This is the micarelle of Kirwan. It has been long known to mineralogists.

25. The appendix to the stony minerals contains the following substances, respecting the nature of which Haüy has not yet come to any determination. Allochroite, pure alumina, amianthoide, anthophyllite, aplome, bergmannite, diaspore, felspar apyre, blue felspar, fibrolite, gabbronite, jade, iolite, cinnamon stone, lazulite of Werner, latialite, lepidolite, melilite, natrolite, fatstone, pseudosommite, tabular spar, spinellare, automolite, spinthere, talc.

26. The additional species in the class of ores are not very numerous. They are as follows:

Carbonate of silver.

Red oxide of lead.

Black carbonate of lead.
Cupriferous carbonate of lead.
Arseniferous phosphate of lead,
Native nickel.

Argentiferous arsenical nickel.not la e toda sih gre
Arseniferous grey copper orelistul ca mas

Antimoniferous grey copper ores vor T

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Platiniferous grey copper ore.

Dioptase or copper emeraldo

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Native iron astrobio odt to bazoqnɔo lik are yarÏ
Titaniferous oxide of iron.

White sulphurer of iroThis is the pyrites known in this country by the name of coqkscombopyrites. It has often a green colour externally, but is always of a very light yellow when broken. It constitutes a distinct species, and probably is composed of different proportions of the constituents from common pyrites., M.SI sb bidt er

Phosphate of iront [

Arseniate of iron) A

Carbonate of zine, či

Sulphuret of manganese.

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Ferriferous phosphate of manganese. 63 viens

Anatase.

Oxide of collumbium,

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Allanit, or siliciterous oxide of cerium. VAT J Oxide of chromium.III. A great number of additional crystallines forms has been determined by Hauy. This is the branch of mineralogy in which Hauy's great excellence consists. All his remarks on it? are valuable, and entitled to great attention. As he is himself printing at present a second edition of his work, which will make its appearance in a very short time, and as Lucas gives us no figures, and indeed describes no crystals except those noticed! by Hauy in his Tableau Comparatif, it is unnecessary to notice? these additions here. The number of forms of calcareous spar made out by Hauy at present amount to 150. The forms of sulphate of barytes are not much fewer. Es

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IV. M. Lucas terminates his book with a table of the distri bution of rocks, according to the system of M. Tondi. It is obviously founded upon the geognosy of Werner: from which, indeed, it differs chiefly in the adoption of a great variety of new words to accommodate it to the present French fashion; and in the introduction of a few rocks not noticed by Werner. I shall endeavour to give the reader an idea of this arrangement, î For the term geognosy Tondi substitutes the word oreognosy, a faulty appellation, because the object is not to make us acquainted with the structure of mountains, but with that of the whole crust of the earth. Oreognosy he divides into three branches; namely, oreogenese, or the formation of rocks; oreotectonique, or the structure of rocks; and oreodiacritique, or

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